Logic Masters Deutschland e.V.

The Puzzle Portal

Please note: The creation and use of multiple accounts is not desired in the Portal. (Exceptions are only permitted for technical reasons or with the consent of the association Logic Masters Deutschland.) We reserve the right to block users who violate this rule.

The puzzle portal is a collection of puzzles created by puzzle enthusiasts from all over the world. At the moment the portal contains 30437 puzzles.

If this is your first visit to the puzzle portal we recommend that you take a tour to get an overview of the portal contents.

We have put together a collection of puzzles suitable for beginners. These contain solution hints - and we hope that these puzzles will help you getting started.

---

To help you getting started navigating the portal we have put together some puzzle collections.

Puzzle types	Puzzle collections	Puzzle authors
Sudoku	Easy and nice	Richard
Slither link	Average and nice	Luigi
ABC-tje	Difficult and nice	berni
Pentomino puzzles	Often solved and nice
Mystery puzzles

10-in-9 (Variant) 159 (Variant) A 38 ABC Box ABCtje Achtelwenden Akari Anglers Anti-Diagonal (Variant) Anti-Factor Lines (Variant) Anti-Knight (Variant) Anti-Queen (Variant) Aquarium Arrows Arrows (Variant) Battenburg (Variant) Battlefield (Variant) Battleships Between (Variant) Binairo (Variant) Brick Wall Broken 159 (Variant) Candles Carpet (Variant) Castle Wall Cave Chaos Construction (Variant) Clone (Variant) Compass Compass (Variant) Congruence Loop Consecutive (Variant) Consecutive Pairs (Variant) Coral Country Road Cross the Streams Crossword Puzzle Diagonal (Variant) Difference (Variant) Disjoint Groups (Variant) Distance (Variant) Dominion Domino Search Dots (Theme) Double Trouble (Variant) Earthquake (Variant) Easy as ABC Entropy (Theme) Equality Even/Odd (Variant) Extra Regions (Variant) Fibonacci (Theme) Fillomino Fortress (Variant) Friendly (Variant) Galaxies Geradeweg German Whispers (Variant) Greater Than (Variant) Hakyuu Hashiwokakero Heyawake Hitori Irregular (Variant) Japanese Sums Kakuro Killer (Variant) Knight Move (Theme) Kropki Kropki Pairs (Variant) Kuromasu Kurotto Landvermessung Laser Letter Puzzle Lighthouses LITS Little Killer (Variant) Lockout Lines (Variant) Logical Magic Labyrinth Magic Square Magnets Masterword Masyu Mathrax Maximum (Variant) Mid-loop Minesweeper MinMax (Variant) Modifier Cells (Variant) Moon-or-Sun Myopia Nanro Neighbours Non-Consecutive (Variant) Non-Touching (Variant) Nonogram Norinori Number Link Nurikabe Nurimisaki Outside (Variant) Palindrome (Variant) Parity (Theme) Parity Party (Variant) Pathway (Variant) Pentominous Pentopia Position Sums (Variant) Primes (Theme) Product (Theme) Products Pyramid Quadruple (Variant) Quattroquadri (Variant) Railroads Ratio (Variant) Ratio Pairs (Variant) Region Sum Lines (Variant) Regional Sums Remote (Variant) Renban (Variant) Roller Coaster Roman Numerals (Variant) Roman Sums Rossini (Variant) Samurai (Variant) Sandwich (Variant) Sashigane Shakashaka Shikaku Shimaguni Skyscraper Clusters Skyscrapers Slingshot (Variant) Slitherlink Smashed Sums Snake Snake (Variant) Star Battle Sudoku Suguru Tapa Taxicab (Variant) Tents Thermo (Variant) Thermometers Umbrellas Underground Urnenrätsel Variables Tapasyu Windoku (Variant) X-Sums (Variant) XV (Variant) XV Pairs (Variant) XY-Differences (Variant) Yajilin Yin and Yang

Enjoy browsing the portal!

If you are interested in the recent growth of new puzzles, see the discussion in our forum (scroll down to see comments in English).

The easiest puzzles

	Description	solved	Rating
	Rose Puzzle 1 by RailMan (on 13. June 2025, 15:45)	519	79 %
	Quad V 4x4 by iceypop3444 (on 10. August 2025, 03:28)	326	73 %
	Look At What You're Saying by PhoenixAki (on 9. April 2025, 10:04)	584	77 %
	speedrun sudoku by Tis_Me_Alex_B (on 6. March 2024, 17:39)	1053	63 %
	Beginner Palindrome by wuc (on 8. February 2024, 20:07)	1080	75 %

Show complete list

The most beautiful puzzles

	Description	solved	Rating
	Rundweg Family Photo by pokerke (on 14. February 2011, 00:57)	82	100 %
	Wichtel 2016 (2): Erfahrener Höhlenforscher gesucht by wichtel (on 20. April 2017, 11:02)	50	100 %
	Die Kryptos - S02E06: Summenbild Rundweg / Sudoku by tuace (on 16. March 2018, 15:10)	41	100 %
	Japanische Höhle mit Irrwisch von den Außerirdischen (2) by ibag (on 20. April 2018, 00:00)	40	100 %
	Glückwünsche vom Orion by Statistica (on 9. July 2019, 00:55)	25	100 %

Show complete list

The newest puzzles

	Description	solved	Rating
	Shuffledoku by Kaktuslav (today, 08:00)	0	N/A
	Sudoku Variants Series (448) - Coordinate arrows by Richard (today, 06:00)	5	N/A
	Similar Circles by Md88keys (today, 05:13)	2	N/A
	el chupacabras by aqjhs (today, 04:20)	0	N/A
	The Legend Of Sudoku Hollow: Frankly Terrified by MathGuy_12 (today, 03:01)	2	N/A

Show complete list

Latest

New comments	Last solved
Sudoku Variants Series (448) - Coordinate arrows (today, 07:44 by Dermerlin) nice puzzle! I loved the ruleset Perfect In Our Imperfection (today, 07:28 by Martina) Is that an X for a 10 sum in cage 9? Sudoku Variants Series (448) - Coordinate arrows (today, 07:23 by damo_89) Pretty much as approachable as a coordinate arrow puzzle can be. Do give it a go Foggy Killer (today, 06:49 by Katchoo) Sehr sehr sehr toll! Divide & Conquer (today, 06:23 by CutieRainbow) So in this puzzle, what does a clued cell look like Ricochet (today, 06:13 by thrutch) Very nice indeed! Fluffy (today, 05:27 by Andrewsarchus) Very nice addition to the pantheon of monstrous modifiers! And the Lines of... Balancing Banshees (today, 05:26 by SennyK) Lovely, lovely puzzle. I really enjoyed it all the way through. And the relief... 56 Killer (today, 05:13 by MysticMan) Lovely puzzle! Ricochet (today, 05:12 by Merdock) That was an incredible puzzle. Thank you!	today, 08:02 Teenage Vampire Slayer by ankpress today, 08:02 Olive It in the Fog by lina_hyena today, 08:01 peanuts by Pillepalleabe today, 08:01 Deeper Motion (Antiknight Region Sum Lines) by mcs131313 today, 08:01 Two-Tone Totals by totem_mapr today, 08:00 Speichenrätsel für Anfänger (1) by yenja today, 07:59 Herniated Ring-5 by JPlay today, 07:58 Ready, Set, Go! by dalyons today, 07:57 Two-Tone Totals by Gowgon today, 07:57 Sudoku Variants Series (448) - Coordinate arrows by tuturitu
Show complete list	Show complete list

---